Tag #Hippocampus

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theglobeandmail.com

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May 16, 19:13

GPS Navigation, Hippocampal Shrinkage, and the Decline of Cognitive Mapping

Alex Hutchinson's essay explores the impact of GPS navigation on cognitive function, arguing that over-reliance on stimulus-response navigation through GPS can lead to hippocampal shrinkage and potentially increase the risk of neurological conditions. The author emphasizes the importance of active e...

GPS Navigation, Hippocampal Shrinkage, and the Decline of Cognitive Mapping

Alex Hutchinson's essay explores the impact of GPS navigation on cognitive function, arguing that over-reliance on stimulus-response navigation through GPS can lead to hippocampal shrinkage and potentially increase the risk of neurological conditions. The author emphasizes the importance of active e...

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What are the potential neurological consequences of excessive reliance on GPS navigation, and how does it impact cognitive function?

Alex Hutchinson's essay discusses the impact of GPS navigation on our brains. Over-reliance on GPS, a form of stimulus-response navigation, may lead to hippocampal shrinkage, potentially increasing the risk of neurological conditions like Alzheimer's. This is because GPS eliminates the need for cognitive mapping, which strengthens the hippocampus.

faz.net

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Mar 24, 10:10

One-Year-Olds Can Store Memories: Study Challenges Common Belief

A study of 26 babies and toddlers (4 months to 2 years) found that one-year-olds show increased hippocampal activity when remembering images, suggesting memory storage begins earlier than previously thought. This challenges the common experience of not recalling very early childhood memories, highli...

One-Year-Olds Can Store Memories: Study Challenges Common Belief

A study of 26 babies and toddlers (4 months to 2 years) found that one-year-olds show increased hippocampal activity when remembering images, suggesting memory storage begins earlier than previously thought. This challenges the common experience of not recalling very early childhood memories, highli...

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What are the broader implications of this research for understanding the long-term effects of childhood trauma and for future research directions?

The research suggests that memory formation mechanisms are active earlier than previously thought, potentially impacting our understanding of childhood trauma and its long-term effects. The inability to recall early memories may stem from ongoing brain development altering memory accessibility, a process warranting further investigation. Future research with larger samples will strengthen conclusions about the exact age of memory storage.

aljazeera.com

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Mar 29, 16:12

Babies Form Memories at 12 Months: Study Challenges Previous Beliefs

A Yale and Columbia University study, published in Science, used brain scans to show that 12-month-old babies can form memories via their hippocampus, challenging previous beliefs about when episodic memory development begins and having implications for understanding cognitive development and mental...

Babies Form Memories at 12 Months: Study Challenges Previous Beliefs

A Yale and Columbia University study, published in Science, used brain scans to show that 12-month-old babies can form memories via their hippocampus, challenging previous beliefs about when episodic memory development begins and having implications for understanding cognitive development and mental...

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How do these findings challenge previous understandings of early childhood memory development, and what types of memories are formed at different ages?

This study challenges the previous belief that episodic memory formation begins around 18-24 months. The findings show that episodic memory development starts earlier than thought, potentially as early as two or three months, although the type of memory formed differs; while implicit memory and statistical learning occur earlier, episodic memory requires hippocampal maturation.

forbes.com

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Jan 29, 22:11

Stress Hormones and Fear Generalization: A Mouse Study

A University of Toronto study shows that stress hormones increase the size of fear memory engrams in the amygdala, causing fear generalization in mice; this finding may lead to new treatments for anxiety disorders.

Stress Hormones and Fear Generalization: A Mouse Study

A University of Toronto study shows that stress hormones increase the size of fear memory engrams in the amygdala, causing fear generalization in mice; this finding may lead to new treatments for anxiety disorders.

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How does acute stress affect memory encoding and recall, specifically regarding the differentiation between threatening and non-threatening stimuli?

A University of Toronto study reveals that stress hormones, like corticosterone in mice (analogous to cortisol in humans), increase the size of fear engrams in the amygdala, leading to fear generalization. This means that a fearful response to one stimulus expands to include otherwise neutral stimuli. The study used a threat discrimination task with mice, half of which experienced stress before training, demonstrating this effect.

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